National Geographic has launched it's 2016 Nature Photographer of the Year contest. The categories for this year are Landscape, Environmental Issues, Action and Animal Portraits. The winner will receive a 10-day trip for two at the Galápagos Islands with National Geographic Expeditions, along with two 15-minute portfolio reviews with the photo editors at National Geographic. Submissions close on 4 November.

IBTimesUK takes a look at a selected number of images the competition has received so far: